Solvent-free domino acylation/cyclization reactions between fatty acid esters and o-phenylenediamine mediated by immobilized lipase from Mucor miehei (MML) were found to be an efficient way in the synthesis of 2-alkylbenzimidazole. Compared with other substrates, methyl fatty acid esters with moderated chain length exhibited best activity with yield up to 95%. The mechanism of the domino process was
Benzodiazepine And Benzopiperazine Analog Inhibitors Of Histone Deacetylase
申请人:Leit Silvana
公开号:US20070155730A1
公开(公告)日:2007-07-05
This invention relates to compounds for the inhibition of histone deacetylase. More particularly, the invention provides for compounds of formula (I)
wherein A, B, D, E, X
1
, X
2
, X
3
, X
4
and n are as defined in the specification.
PhNCO-enabled synthesis of secondary amides from <i>N</i>-(2-aminophenyl)benzamides
作者:Karthick Govindan、Nian-Qi Chen、Alageswaran Jayaram、Wei-Yu Lin
DOI:10.1039/d3nj04995g
日期:——
We have successfully developed an efficient method for synthesizing secondaryamides utilizing easily accessible N-(2-aminophenyl)benzamide and phenyl isocyanate. Notably, the leaving group can be easily recuperated as a carbonylated N-heterocycle, which holds notable relevance in pharmaceutical applications. The crux of this strategy involves a sequential nucleophilic/intramolecular addition process